boto: upgraded package to upstream

Upgraded dev-python/boto to version 2.49.0 for newer gsutil.

BUG=chromium:1019337
TEST=CQ passes

Change-Id: I4cc8f4cd5507c416439065912ab565703eb73b01
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/2033615
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Chris McDonald <cjmcdonald@chromium.org>
2 files changed